__pthread_mutex_destroy (mutex=0x0) at pthread_mutex_destroy.c:28
g_cond_broadcast (cond=<optimized out>) at /build/buildd/glib2.0-2.32.0/./glib/gthread-posix.c:782
release_device (gphoto2_backend=0x0) at gvfsbackendgphoto2.c:621
do_mount (backend=<optimized out>, job=0x994000, mount_spec=<optimized out>, mount_source=<optimized out>, is_automount=<optimized out>) at gvfsbackendgphoto2.c:1668
g_vfs_job_run (job=0x994000) at gvfsjob.c:198